In 2 days I talked to 5 customer service representatives, only 2 could able to understand my request which was activating a line on a friend plan and transferring my number to it , I got both the account holders to call T-Mobile and authorize the transfer , I was promised that it will be done in 24 hours, 24 hours after I'm still calling T-Mobile and they are asking me to get the account holder to authorize the transfer...talking to T-Mobile phone representatives is a waste of time